Apparatus for vaporizing liquids



s. A. DAVERON APPARATUS FOR VAPORIZING LIQUIDS April 2, 1940.

Filed July 1, 1938 Z 7 fi m mw w; N 6 IM MY f firm n m fi J ATTORNEYSPatented Apr. 2, .1940

PATENT OFFICE APPARATUS FOR vAromzme mourns Solon Alexander D averon,Rio de Janeiro, Brazil Application July 1, 1938, Serial No. 216,925

I In Brazil July 3, 1937 4 Claims.

My invention relates to an apparatus for vaporizing liquids; moreparticularly, it relates to a simple, compact, portable type ofvaporizer in combination with a container for. liquids to be vaporized.Certain types of apparatusof this character, heretofore constructedforthevaporization of insecticides, paints and other liquids presentdiiliculties in transportation because inadequate provisions have beenmade for p=reventing the leakage of their liquid contents, This is aserious disadvantage encountered by travelers who would liketo carrysuch an apparatus in a suitcase or trunk containing clothes. or otherobjects that are subject to damage by liquids. Other disadvantagesassociated with certain forms of portable Vaporizers include liabilityto failure of vital parts thru wear, following. Prolonged use-andoxidation and/or corrosion of vital parts thru contact with theatmosphere. Furthermore, loss of liquid contents thru evaporation anddecomposition or other changes in the qualities of the liquid contentsmay be expectedin suchtypesof portable Vaporizers as do not provide forthe adequate sealing of the apparatus when it is not in use. Inaddition, many types of portable Vaporizers, being awkward in shape, areeasily overturned and require both care and excessive space in storage.

. It is theobject of my invention to provide an improved apparatus ofthe character referred to in which such disadvantages as those mentionedabove are avoided and which is of simple construction, eflicient inoperation and'inexpensive to manufacture. 1 Another object of myinvention is-to provide an apparatus of the character referred to thatwill reduce the physical effort required to vaporize'a givenamount ofliquid by utilizing the relatively large volumeof air which any normaloperator of my invention is capable of exhaling. My inventionwill-bebetter understood from the following description taken inconnection with the accompanying drawing and its scope will be pointedout in the appended claims.

Figure 1 is a superior View ofthe head of the vaporizer with tube inposition for use.

Figure 2 is a crossysection of the cap used in closing and sealing thevaporizer.

Figure 3 is a lateral view of vaporizer with tube in position for use.

Figure 4 shows valve assembly.

Figure 5 is a cross section of the vaporizer in the container and readyfor use.

Figure 6 is a cross section of vaporizer in the container, closedandsealed.

As can be seen by observing the above figures. my invention consistsofthe following parts: a round, externally threaded head I with averticallshoulden l which has in its center a threaded hole; a shorttube 2 inserted into the head from above and serving, superiorly, as anoutlet for liquids and, inferiorly, as the seat of a valve; a tube Iinserted into the head I from below and in line with tube 2 serving toconvey liquids from the lower part of the container l2 to the externalopening of the tube 2; a ventilating hole 2a thru the head I; a tube 5sealed at its lower extremity, extending downward thru the head I whosefunction it is to receive tube 6 when the apparatus is being sealed; atube 6 threaded at one end, to enter shoulder 4 of head I; a base Ithreaded exteriorly to receive cap 8 and interiorly to receive head Iand having a flange II at its lower extremity; a gasket I4; 2. cap 8; acontainer I2 to which base I0 is fixed; and a valve assembly I3.

To operate this vaporizer, the head I is screwed into the base l0 untilits upper surface is flush with the top of the base ID. The tube 6 isthen screwed into the hole in the shoulder 4 of the head I. Now byblowing into, or applying any other source of air under pressure to thefree end of tube 6, a current of .air is forced around and past theexternal opening of tube 2 causing a rising of liquid from the containerthru tube "I and thru tube 2 and the vaporization of this liquid in thestream of air directed thru tube 6. It will be observed in Figure thatthe valve assembly I3 rests upon the bottom of the container I2 and thatthe ball I3a is well below the seat at the bottom of the tube 2 thuspermitting a free passage of liquid from the container to the externalopening of tube 2. It is also to be observed that the vent 241 permitsthe entrance of air into the container while the head I is in thisposition.

To close and seal the apparatus. Tube 6 is unscrewed from shoulder 4 andplaced in tube 5. The cap 8 is placed in position over base IQ so thatthe inner threads of the cap 8 engage the external threads of the baseI0. Once the threads become engaged, the two pegs 9 of the cap 8 comeinto contact with the shoulder 4 of the head i and a continued turningof the cap 8 imparts a rotary motion to the head I causing its descentinto the base l0. As the inner and the outer threads of the base H! areof the same pitch, the head I descends evenly with the cap 8 until itrests upon the gasket I4. Added force applied to the turning of the cap8 compresses the gasket I4 between the head I and the flange I! thusstopping vent 2a and also preventing theescape of any liquid by way ofany space between the threads of head I and the inner threads of baseI0. It will be observed, Figure 6, that with the descent of the head Ithe space between the seat at the bottom of tube 2 and the ball l3abecomes eliminated and that the ball I3a comes into contact with theseat under pressure supplied by the compression of spring I St thuspreventing escape of liquid thru tube 2. The vaporizer is now (Figure 6)effectively sealed within its container l2 and the liquid contents ofthe container l2 cannot escape regardless of the position in which theapparatus is stored or carried.

It will be seen that my vaporizer can readily be transferred to anyother properly constructed container provided such other container isequipped with a base Ml and provided, further, that the length of thetube '5 and the valve assembly i3 be changed, if necessary, to conformto theheight of the new container.

To open and unseal the apparatus, the process of closing and sealing, asdescribed above, is simply reversed.

Having now particularly described and ascertained the nature of my saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is:

1. An atomizer assembly comprising in combination an outer cylindricalhousing member having an inwardly presented flange adjacent the bottomthereof, a central head fitting within and adjustable axially in saidhousing, a closure cap member adapted to close the top of said housingand to cause the central head to come into engagement with said flange,a liquid-conveying tube extending through said central head and fittedwith a valve mechanism adapted to close the tube on engagement of thehead and the flange, an air vent through said head so positioned as tobe closed on engagement of the head and the flange, and an air tuberemovably fixed to said head and adapted to deliver air across the upperOpening of said liquid conveying tube.

2. An atomizer assembly comprising in combination an outer cylindricalhousing member having a threaded inner cylindrical surface, anexteriorly threaded portion adjacent the top thereof, and an inwardlypresented flange adjacent the bottom thereof, an externally threadedcentral head in screw engagement with the inner threaded surface of thehousing member and adjustable axially by rotation therein to engage thesaid inwardly presented flange, said central head having an air ventextending substantially vertically therethrough, the lower opening ofwhich is in alignment with said flange, said head further having avertically projecting substantially centrally located shoulder throughwhich is disposed a laterally extending passage, an elongated tubularmember extending vertically through said head and having a constrictionin its upper end portion which projects above the head to provide aliquid passage of smaller diameter than that of said tubular member andto provide an inwardly disposed valve seat, a valve member adapted toengage said valve seat and effect a closure of the tubular member whenthe said central head is brought into engagement with the housingflange, an air-conveying tubular member one end of which is adapted tofit within the lateral passage in the shoulder portion of the centralhead and to pass air across and at an angle to the constricted passagein the tubular member, and a threaded closure cap adapted 0 engage t 6terior threads on the cylindrical housing, and further adapted to engagethe central head and by rotation to bring said head into closure contactwith said housing flange while closing the valve in said elongatedtubular member.

3. An atomizer assembly comprising in combination an outer cylindricalhousing member having a threaded inner cylindrical surface, anexteriorly threaded portion adjacent the top thereof, and an inwardlypresented flange adjacent the bottom thereof, an externally threadedcentral head in screw engagement with the inner threaded surface of thehousing member and adjustable axially by rotation therein to engage thesaid inwardly presented flange, said central head having an air ventextending substantially vertically therethrough, the lower opening ofwhich is in alignment with said flange, said head further having avertically projecting substantially centrally located shoulder throughwhich is disposed a laterally extending passage, an elongated tubularmember extending vertically through said head and having a constrictionin its upper end portion which projects above the head to provide aliquid passage of smaller diameter than that of said tubular member andto provide an inwardly disposed valve seat, a. valve member adapted toengage said valve seat and efiect a closure of the tubular member whenthe said central head is brought into engagement with the housingflange, an air-conveying tubular member one end of which is adapted tofit within the lateral passage in the shoulder portion of the centralhead and to pass air across and at an angle to the constricted passagein the tubular member, and a tubular receptacle closed at its lower endextending through said central head and adapted to receive saidair-conveying tubular member.

i. A liquid-atomizing device capable of being sealed against leakagewhich includes in combination a liquid container having an opening inthe upper portion thereof and an atomlzing assembly fitting tightly insaid opening, said atomizing assembly comprising in combination an outercylindrical housing member having a threaded inner cylindrical surface,an exteriorly threaded portion adjacent the top thereof, and an inwardlypresented flange adjacent the bottom thereof, an externally threadedcentral head in screw engagement with the inner threaded surface of thehousing member and adjustable axially by rotation therein to engage thesaid inwardly presented flange, said central head having an air ventextending substantially vertically therethrough, the lower opening ofwhich is in alignment with said flange, said head further having avertically projecting substantially centrally located shoulder throughwhich is disposed a laterally extending passage, an elongated tubularmember extending vertically through said head and having a constrictionin its upper end portion which projects above the head to provide aliquid passage of smaller diameter than that of said tubular member andto provide an inwardly disposed valve seat, a valve member adapted toengage said valve seat and efiect a closure of the tubular member whenthe said central head is brought into engagement with the housingflange, an air-conveying tubular member one end of which is adapted toflt within the lateral passage in the shoulder portion of the centralhead and to pass air across and at an angle to the constricted passagein the tubular member, and a threaded closure cap adapted to engage theexterior threads on the cylindrical housing, and further adapted toengage the central head and by rotation to bring said head into closurecontact with said housing flange while closing the valve in saidelongated tubular member.

SOLON ALEXANDER DAVERON.

